Display screen or portion thereof with computer-generated graphical dashboard transition



FIG. 1 is a front view of a display screen or portion thereof with computer-generated graphical dashboard transition showing a first image; and,

FIGS. 2-12 are showing the second through twelfth images thereof.

The appearance of the computer-generated graphical dashboard sequentially transitions between the images shown in FIGS. 1-12. The process or period in which one image transitions to another forms no part of the claimed design.

The broken lines and texts shown on the display screen or portion thereof are for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with computer-generated graphical dashboard transition, as shown and described. 